Cyber Education Institute LLC (Billington CyberSecurity)

Billington CyberSecurity, operating under the legal entity Cyber Education Institute LLC, is an independent education company focused on cybersecurity. Headquartered in Chevy Chase, MD, its mission is to convene senior-level government, military, and industry leaders to deliver world-class education and networking opportunities in the cybersecurity domain.

The company's core offerings include a range of cybersecurity education events such as the Annual Billington CyberSecurity Summit, State and Local CyberSecurity Summits, and Critical Infrastructure CyberSecurity Summits. Beyond these major conferences, Billington CyberSecurity also provides monthly webinars, partner breakfasts, innovation roundtables, and a private membership service featuring leadership council dialogues, all aimed at fostering information and knowledge sharing to enhance U.S. and allied cyber defenses.

In September 2025, Billington CyberSecurity was acquired by CloserStill Media, becoming an operating subsidiary. Thomas K. Billington continues to serve as Founder, CEO, and Chairman, with Troy Schneider appointed as President. The company maintains its position as a leading organizer of federal cybersecurity education events, known for attracting top global cyber leaders and facilitating discussions on critical topics, such as the "Reducing Risk in an Age of AI-Enabled Threats" theme of its 17th Annual Summit in September 2026.